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Originally Posted by rohara66
Unless I'm missing something I dont see how you'd spray foam the walls without having clear access into them? I dont think you can just spray foam from the top or anything.
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You would have to remove the sheeting on the outside, and I wasn't thinking that through too well in my original suggestion, I had to do it to an addition, and it would still be easier than gutting the OP's garage to do it internally.
Quote:
Originally Posted by rohara66
And ceilings can't be spray foamed. Really? Why not?And its not recommended to spray foam the u/s of the roof sheathing without some sort of venting accommodations.
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Agreed on the u/s as that seals up the eave venting and the building then needs air exchange, hence why I suggested the ceiling only.